Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Leiognathidae
(Slimys, slipmouths, or ponyfishes)
Etymology: absconditus: Name from Latin absconditus meaning hidden or concealed, referring to its being well represented in collections for many years, yet consistently misidentified as member of other species.
Environment / Climate / Range
Marine; pelagic-neritic. Tropical, preferred ?
Northwest Pacific: Taiwan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.8 cm SL male/unsexed; (Ref. 84470)
Morphology | Morphometrics
soft rays: 14;
Vertebrae: 23. This species is distinguished from its congeners by having an expansive irregular-pentagonal, translucent flank patch in males and by a strong concavity dorsal to the orbit creating a hump-shaped rise in the dorsal profile that gives the head an appearance of being small and pointed; a much deeper body 34-49% of SL (vs. 12.5-29.7% in E. elongatus and E. rivulatus); differs from E. laterofenestra and E. klunzingeri by possessing a translucent flank patch in males that does not reach the pectoral fin; differs from E. laterofenestra and E. leuciscus by a dorsal flank pigmentation pattern of thin transverse lines vs. round semi-circles and oval shapes (Ref. 84470).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chakrabarty, P., J. Chu, L. Nahar and J.S. Sparks, 2010. Geometric morphometrics uncovers a new species of ponyfish (Teleostei: Leiognathidae: Equulites), with comments on the taxonomic status of Equula berbis Valenciennes. Zootaxa 2427:15-24. (Ref. 84470)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00604 - 0.03012), b=3.05 (2.86 - 3.24), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .